Rounded serrated edge film strip geometry for cross-tie wall memory system
US4075612A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1977 |
| Grant date | Feb 21, 1978 |
| Priority date | — |
| Expiry date | Jan 3, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C19/0841
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The design of a magnetic film strip for defining the data track of a cross-tie wall memory system is disclosed. The design involves the conformation or shaping of the opposing edges of the film strip into repetitive, rounded, asymmetrical serrated edge contours. The serrated edge shape structures the cross-tie of each cross-tie, Bloch-line pair at the narrowest width dimension across the film strip while the Bloch-line is positioned at the widest width dimension across the film strip or at the round, convex, portion of the repetitive serrated edge shape. The asymmetrical, rounded edge contour is substantially in alignment with the natural contour of the magnetization that is oriented around a Bloch-line that is positioned on the cross-tie wall, which cross-tie wall is aligned along and superposed the geometric centerline of the film strip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.